Combined letter tray and step file



FIG. 1 is a perspective view of a combined letter tray and step fileembodying my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a left side elevational view thereof, the opposite side beinga mirror image thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof; and

FIG. 6 is a bottom plan view thereof.

The ornamental design for a combined letter tray and step file,substantially as shown and described.